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69144017 is a prime number
BaseRepresentation
bin1000001111100…
…00110111010001
311211002212202112
410013300313101
5120200102032
610505555105
71466500025
oct407606721
9154085675
1069144017
1136036a18
121b1a5a95
131142c027
14927c385
15610c1b2
hex41f0dd1

69144017 has 2 divisors, whose sum is σ = 69144018. Its totient is φ = 69144016.

The previous prime is 69143993. The next prime is 69144071. The reversal of 69144017 is 71044196.

Together with next prime (69144071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68541841 + 602176 = 8279^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 69144017 - 210 = 69142993 is a prime.

It is not a weakly prime, because it can be changed into another prime (69144217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34572008 + 34572009.

It is an arithmetic number, because the mean of its divisors is an integer number (34572009).

Almost surely, 269144017 is an apocalyptic number.

It is an amenable number.

69144017 is a deficient number, since it is larger than the sum of its proper divisors (1).

69144017 is an equidigital number, since it uses as much as digits as its factorization.

69144017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 69144017 is about 8315.2881489459. The cubic root of 69144017 is about 410.4417546753.

The spelling of 69144017 in words is "sixty-nine million, one hundred forty-four thousand, seventeen".